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Abstract

Background: Endothelial progenitor cells (EPCs) may originate from the bone marrow and are capable of contributing to cardiovascular regeneration. However, the identities of these bone marrow cells and the signaling pathways that regulate their differentiation into functional EPCs remain poorly understood. Hematopoiesis consists of a cascade by which hematopoietic stem cells (HSCs) give rise to either a common myeloid progenitor (CMPs) or common lymphoid progenitor (CLPs). The CMP cells can give rise to either granulocyte-monocyte progenitors (GMPs) or megakaryocyte-erythrocyte progenitors (MEPs).